Malicious PDF — malware analysis report

Heuristics 6

• PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
  PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
• Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
  Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
• Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
  PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
• Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
  Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
• Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
  The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
• Embedded URL info EMBEDDED_URL
  One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
  URL https://ttraff.link/wix?keyword=english+grammar+worksheets+for+grade+4+cbse In PDF document text

  • http://sugej.innerbalancebermuda.com/uploads/1/3/0/7/130740051/4ea43f4.pdfIn PDF document text
  • http://govamam.interdynartis.com/uploads/1/3/1/4/131437502/xepeduwipo.pdfIn PDF document text
  • http://www.ascendercorp.com/In PDF document text
  • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
  • http://www.daltonmaag.com/In PDF document text
  • https://cdn.shopify.com/s/files/1/0451/1626/0517/files/71786664921.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0440/2629/8533/files/hayward_vari-_flo_xl_valve_parts.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0432/9937/3224/files/49974119521.pdfIn PDF document text
  • https://static.usrfiles.com/ugd/50c35f_1d9b0c2e72664dc48d4a008f08fc7dab.pdfIn PDF document text
  • https://static.usrfiles.com/ugd/0e2875_4916baec91a441988c184400579ca1c5.pdfIn PDF document text
  • https://static.usrfiles.com/ugd/e5412a_1297466b2ee54bedb11ac300f96de6bf.pdfIn PDF document text
  • https://static.usrfiles.com/ugd/1fa6dd_cb9b06cc9d0748cbb5afcf368a8e879f.pdfIn PDF document text
  • https://static.usrfiles.com/ugd/7008f3_704b720099e64965bbe5c5a2cd7067fb.pdfIn PDF document text
  • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
  • http://purl.org/dc/elements/1.1/In PDF document text
  • http://ns.adobe.com/pdf/1.3/In PDF document text
  • http://ns.adobe.com/xap/1.0/In PDF document text
  • http://ns.adobe.com/xap/1.0/mm/In PDF document text
  • http://ns.adobe.com/xap/1.0/rights/In PDF document text
  • http://scripts.sil.org/OFLIn PDF document text
  • http://dejavu.sourceforge.netIn PDF document text
  • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

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